Common users would also see concrete masts supporting power cables, communication wires and TV lines. What should they think first ? power, communication or TV ?
In France, many public entities are using medium voltage power poles to roll out optical fiber. Using man_made to identify poles and power, communication, TV, whatever to tell what's on it has much sense. Nevertheless, can't we find a better way to identify transformers as a pole feature ? Using something like pole:transformer=yes would allow to introduce other feature (like pole:switch not to mention) and to be consistent to transformer=* (type of transformer) described in your proposal. http://wiki.openstreetmap.org/wiki/Proposed_features/Substation_refinement#Transformer Example : power=pole pole:transformer=yes transformer=distribution voltage=20000;400 transformer:ref=XXXXXX pole:ref=YYYY *François Lacombe* francois dot lacombe At telecom-bretagne dot eu http://www.infos-reseaux.com 2013/9/1 Ole Nielsen <on-...@xs4all.nl> > On 01/09/2013 19:04, François Lacombe wrote: > >> 2013/8/30 Ole Nielsen <on-...@xs4all.nl <mailto:on-...@xs4all.nl>> >> >> >> Agree, the transformer is just a feature of the pole. I wouldn't tag >> it as a substation. >> >> According to >> http://wiki.openstreetmap.org/**__wiki/Proposed_features/__** >> Substation_refinement<http://wiki.openstreetmap.org/__wiki/Proposed_features/__Substation_refinement> >> >> <http://wiki.openstreetmap.**org/wiki/Proposed_features/** >> Substation_refinement<http://wiki.openstreetmap.org/wiki/Proposed_features/Substation_refinement> >> > >> that is indeed how to do it. I see no problems in having an >> alternative tagging of the transformer since the power key is >> already used for the pole. For retrieval it is only slightly more >> complicated than just searching for power=transformer. >> >> >> It's already used for the poles but don't you think it's transformers >> which deserve the most the usage of power=* ? >> > > In this case no. > From an electrical viewpoint the transformer is of course important. > However, is this the most important aspect for the average user? You see a > pole in a row of poles and this particular one happens to have some kind of > lump attached to the top. It may be useful to tag this fact for > navigational purposes but it is otherwise of doubtful use. Very few users > will be interested in the details of that transformer or its connections to > the grid. Even when I'm interested in power grids myself I don't find the > lower voltage distribution grids particularly interesting. Furthermore, it > is mostly impossible to map the distribution networks to any degree of > completeness due to undergrounding etc. Thus I can't see much need to > develop an elaborate tagging for this reason especially if it is not > compatible with the existing tagging practice. However, the average mapper > may still want to tag the transformer as an interesting feature of the > pole. An additional attribute tag (transformer=yes/*) will be sufficient > for that and it won't break anything. Data consumers can easily extract > this information if they need to. > > Ole > > > > ______________________________**_________________ > Tagging mailing list > Tagging@openstreetmap.org > http://lists.openstreetmap.**org/listinfo/tagging<http://lists.openstreetmap.org/listinfo/tagging> >
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